package 申明一个人类;

public class test {
     public static void main(String[] args){

         renlei p1=new renlei();
         p1.setFirstName("瑞");
         renlei p2=new renlei();
         p2.setFirstName("方");
         System.out.println(p1.getLastName()+p1.getFirstName());
         System.out.println(p2.getLastName()+p2.getFirstName());
         p2.setFirstName("圆");
         System.out.println(p2.getFirstName());
         p2.setLastName("王");
         p1.setLastName("wang");
         System.out.println(p2.getLastName()+p2.getFirstName());
         System.out.println(p1.getLastName());


     }


}
